PDEX is an end-user tool which uses the WebServices interface to the API to load Excel data into OPPM PDLU is a scheduled batch process capable of importing (from System A in the diagram) and exporting (to System B) data to data files in a format defined by the associated xml configuration file. PDLU runs on the OPPM application server and directly accesses the OPPM API Data File (System A) PDEX (Portfolios Data Exchange) XML Config (System A) OPPM Data File (System B) XML Config (System B) The third example shows the direct applicationapplication integration using WebServices for “real-time” message based updates Web Services API Web Services PDLU (Portfolios Data Load Utility) Excel Work Books NIHR system with Web Services Interface